Zhangxin Qaghan () or Alp Külüg Bilge Qaghan was the eleventh ruler of Uyghurs. His personal name was Yaoluoge Hu (è¥羠èÂÂè¡). He succeeded his uncle Zhaoli Qaghan in 833.
Chinese records state that he sent an embassy led by Princess Taihe to the Tang, accompanied with seven women horse-archers and two Shatuo captives on 16 June 835.
His peaceful policy with China made him an unpopular ruler. This led to a rebellion in 839 by the Sogdian official An Yunhe (å®Âå ÂÃ¥ÂÂ) and Uyghur minister Chai Lei (æ´åÂÂ). Qaghan was able to defeat and kill them, but lost a subsequent battle against another Uyghur official, General Jueluowu (æÂÂç¾ å¿) along with the Shatuo chief Zhuye Chixin. Zhangxin killed himself following the battle. He was succeeded by Qasar Qaghan.